Here's one I remember from a long time ago on Answerbag: What's in your pantry? The funny thing was people going to their pantries and reporting full inventories. I don't know if I ever laughed so hard at another question.
Well, that wasn't exactly boring, but it's the one I wanted to talk about.
What I like about AM is that virtually any question can solicit entertaining answers. So, there are no boring questions, but I have seen some pretty boring answers.